SOLUTION: You are making 10 tons of concrete that is 59.3% cement by mixing a 39% cement mix- ture with a 68% cement mixture. a) How much of the 68% cement mixture must you use? Answer

SOLUTION: You are making 10 tons of concrete that is 59.3% cement by mixing a 39% cement mix- ture with a 68% cement mixture. a) How much of the 68% cement mixture must you use? Answer

Algebra.Com

Question 601397: You are making 10 tons of concrete that is
59.3% cement by mixing a 39% cement mix-
ture with a 68% cement mixture.
a) How much of the 68% cement mixture
must you use?
Answer in units of tons

How much of the 39% cement mixturemust
you use?
Answer in units of tons
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
x + y = 10

(39%)x + (68%)y = (59.3%)(10)
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